#include <stdio.h>
int main()
{
	int grade[10]={5,6,4,4,2,1,5,5,7,8};
	int total;
	int i;
	float avg;
	for(i = 0 ; i < 10 ;i++ )
	{
		total+=grade[i];
		
	 } 
	 avg = ( (float) total/10);
	 printf("the student's breakball score is %f\n",avg);
	 return 0;
}
